Miner&#39;s tool.



O.HANSONP MINERS TOOL. APPLICATION FILED R. 17, I914.

Patented May 30, 1916.

OLE HANSON, F LEAD, SOUTH DAKOTA.

MINERS TOOL.

Specification of Letters Patent.

Patented May 38 1916.

' Application filed March 17, 1914. Serial IT 0. 825,368.

12'?) e555 whom it may concern Be it known that I, OLE HANSON, citizen he United States, residing at Lead, in the county of Lawrence and State of South Dakota, have invented certain new and useful Improvements in Miners Tools, of which the following is a specification.

The present invention relates to new and useful improvements in miners tools, and

has particular reference to improvements in combination pocket knives.

The principal object of my invention is to provide a pocket knife or jack knife which s for the most part similarly constructed o the ordinary pocket or jack knife, and is ripped with punch and a crimper which may be employed in punching the cap' receiving opening in a stick of dynamite and then used in crimping the blasting cap on fuse.

A further object is to provide a punch which is terminally pivoted between extensions formed on the face plates of the knife handle, and is normally adapted to lie in an out of the way position against the back edge of the knife.

A still further object is the provision of a rimping knife which consists essentially t pair of co-acting crimping jaws, one of e jaws consisting of the knife spring and the other of the jaws being constituted by punch.

The above and additional objects are accomplished by such means as are illustrated 3-5 in the accompanying drawings, described in the following specification, and then more ly pointed out in the claims which e a: pended reto and form a part of this cation.

c has been illustrated the preferred em- .nment of this invention as it is reduced to practice, and throughout the several views of which similar reference numerals designate corresponding parts, Figure 1 is a perspective view of the tool or knife w1th the blades and punch in normal closed position; 2 is a side elevation illustrating the nner in which the punch and back spring is knife cooperate to'crimp a blasting r a hlasting cap interposed btween is a detail perspective View, illustratarticularlv a blasting cap after it has crimpe'd on a fuse by means of my 1th reference to the drawings, wherein I fuse; Fig; 3 .is a top plan view.

k spring of the knife and the pun h;

tool; and Fig. 5 is a longitudinal sectional View more particularly showing the mounting of the crimping jaw.

In the drawings, the numerals and 11 designate respectively the knife, which forms the body of the tool, and the punch. member, which, as previously set forth, serves also as one of the crimping jaws. The knife 10 is similar in construction'to the well known jack knife, with the exception that the face plates 12 and 13 of the knife handle are provided with terminal apertured cars 14 and 15, between which is pivotally mounted the terminal of the punch. In securing the terminal of the punch 11 between the cars 14 and 15 an ordinary pin 16 is employed, as clearly shown in Figs. 1 and 2, while the back spring of the knife is cut away to receive the said terminal and engages therewith.

A rounded head 17 is formed on the pivoted end of the'punch 11, and it is through this member thatthe pivot pin 16 passes. A transversely extending shoulder 18 is formed in the normally outer edge of the punch adjacent the head member 17. It is now to be observed that the head member 17 is offset with respect to the longitudinal center line of the punch. The purpose in so disposing the head member is to guard against'the accidental displacement or swinging-of the punch when this member has been swung intooperative extended position, as indi cated in dotted lines in Fig. 2. When the punch is thus disposed, it will be seen that the shoulder 18 engages against the shoulder 19 formed at the adjacent terminal of the back spring. Now, since the longitudinal center line of the punch lies between the pivot pin 16 and the shoulder 18 when the punch is projected, as in Fig. 2, it is obvious that a thrust exerted on the punch in the act of inserting this member in a stick of dynamite will have little or no tendency to swing the punch into inoperative position.

i In the back of the knife spring 20 is formed a substantiallv semi-circular transversely extending recess '21-. This recess 21 is flanked on each side by semi-circular re cesses 22 formed in the face plates 14 and 15 of the knife handle. These lateral recesses 22 are somewhat deeper than the recess 21, so that the metal of the blastingcap, which is indicated at 23 in .Fig. 3, may be compressed or crimped by the face of the recess 21, acting in connection with metal.

a similar and registering semi-circular recess 24: formed in the adjacent edge of the punch 11. The inner edge of the punch 11 is cut away as best shown in Figs. 1 and 2 of the drawings to provide laterally extending recesses arranged one upon each side of the notch 24 and communicating "herewith while the outer edge of the back spring 20 is similarly cut away to provide lateral-1y extending recesses arranged one upon each side of the notch 21 and communicating therewith, these lateral recesses of the punch being adapted to mate with the lateral recesses ofthe back spring as illustrated. Consequently, when a fuse cap is operated on, as disclosed in Fig. 2, portions of the cap will be compressed into the said laterally extending mating recesses, it, of course, being impossible to crimp that portion of the cap which is positioned within the recesses 21 and 24 without forming laterally extending flanges or crimps in the The recesses 21 and 24 are, therefore,.provided with relatively sharp edges so that, when the punch 11 is pressed toward the handle 10, the opposed edges of the two recesses will co-act to pinch the metal andproduce the longitudinally extending laterally projecting crimps, indicated at 25 in Fig. 2.

It will be seen upon reference to Figs. 2 and 4: particularly that after the fuse has been inserted in the blast cap and the cap has been operated on' by my tool, the metal of the cap is so crimped that a central tube or portion 26 is formed intermediate the length of the cap, and that this member 26 is of considerable less diameter than the major portion of the cap. The fuse is thus firmly and securely clamped in the blasting cap. After the cap has been crimped on the fuse, the punch may be swung into a projecting position with respect to the handle, as indicated in F 2, and employed in punching a cap receiving hole in a stick of dynamite, as has been hereinbefore explained.

In reduction to practice, it has been found that the form of this invention illustrated in the drawings, and referred to in the above description as the preferred embodiment, is the most efficient and practical; yet realizing that the conditions concurrent with the adoption of this device will necessarily vary, it is desirable to emphasize thefact that various minor changes in details of construction, proportion and arrangement of parts may be resorted to,

when required, without sacrificing any or the advantages of this invention, as defined in the appended claims.

V'Vhat is claimed is 1. A tool of the class described including spaced faceplates, a spring interposed ,between the face plates, there being transversely alined notches formed in the spring and in the adjacent edges of the face plates, the notches in the face plates being of a depth greater than that of the notch of the spring, the outer edge of the spring being provided with laterally extending recesses communicating with the notch formed therein, and a pivoted crimping jaw terminally connected to the face plates, said crimping jaw having a notch formed in one edge adapted to mate with the notches of the spring and face plates and having its inner edge provided with laterally extending recesses communicating with the notch formed therein and adapted to mate with the recesses of the spring.

2. A tool of the class described including spaced face plates, a spring interposed between said plates, there being. transversely alined notches formed in the spring and in the adjacent edges of the face plates, the outer edge of the spring being provided with laterally extending recesses communicating with the notch formed therein, and a=crimping jaw swingingly connected to the face plates, said crimping jaw having a notch formed in one edge adapted to mate with the notches of the spring and face plates and having its inner edge provided with laterally extending recesses communicating with the notch formed therein and adapted to mate with the lateral recesses of the spring.

3. A tool of the class described including a body portion having face plates ofi'set adjacent one extremity of the body portion, a spring carried by the body portion and cut away adjacent the offset extremities of said face plates, and a crimping jaw pivotally connected to the offset portions of the face plates andengaged by the cut away portion of said spring, the jaw being movable to coeperate with the face plates and with the spring.

In testimony whereof I affix my signature 1n presence of two witnesses.

OLE HANsoN. [1,. 8.

' lVitnesses:

J. \VM. STONER, MARY E. HASTIE.

floplel of this patent may be obtained tor five cents each, by addressing the Commissioner of Patents, Wuhington, D. G.

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